Struct SimulatorBackend 

pub struct SimulatorBackend {}

No-op display backend for simulators and testing

This backend immediately “completes” all transfers and is always ready. It’s useful for:

• Desktop simulators that don’t have real DMA hardware
• Unit testing swap chain logic
• Development without target hardware

Implementations

impl SimulatorBackend

pub fn new() -> Self

Create a new simulator backend

Trait Implementations

impl Default for SimulatorBackend

fn default() -> Self

Returns the “default value” for a type.

impl<const W: usize, const H: usize, FB> DisplayBackend<W, H, FB> for SimulatorBackend

where FB: DMACapableFrameBufferBackend<Color = Rgb565>,

fn start_dma_transfer( &mut self, _framebuffer: &FrameBuf<Rgb565, FB>, ) -> Result<(), DisplayError>

Start a non-blocking DMA transfer of the framebuffer to the display

fn wait_for_dma(&mut self)

Wait for the current DMA transfer to complete

fn is_dma_ready(&self) -> bool

Check if DMA is ready for a new transfer

fn start_dma_transfer_region( &mut self, framebuffer: &FrameBuf<Rgb565, FB>, _region: DisplayRegion, ) -> Result<(), DisplayError>

Start a non-blocking transfer of a framebuffer sub-region.

fn present( &mut self, framebuffer: &FrameBuf<Rgb565, FB>, ) -> Result<(), DisplayError>

Present a framebuffer to the display (convenience method)

fn present_region( &mut self, framebuffer: &FrameBuf<Rgb565, FB>, region: DisplayRegion, ) -> Result<(), DisplayError>

Present a framebuffer sub-region to the display.